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Maharashtra Class 10 Answered

The forewheel of a tractor makes 120 revolutions more than the rear wheel is going 720 m. If the diameter of the forewheel is doubled and the diameter of the rear wheel is increased by 1.5 times the present diameter, then the forewheel makes 20 revolutions more than the rear wheel in going the same distance. Finf the circumference of each wheel.
Asked by kkchandrapur | 04 Oct, 2018, 10:05: AM
answered-by-expert Expert Answer
Let the front wheel diameter = d1
rear wheel diameter = d2
by the given conditions
begin mathsize 18px style πd subscript 1 equals πd subscript 2 plus 120...... left parenthesis 1 right parenthesis
πd subscript 1 cross times 2 equals πd subscript 2 cross times 1.5 plus 20...... left parenthesis 2 right parenthesis end style
solve (1) and (2) simultaneously
to get d1 and d2
Answered by Arun | 10 Oct, 2018, 11:24: AM

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